DNA Sites Give Different Results to Identical Twins

If you are one of the millions of adults who now have access to their genetic data thanks to one of the very popular services like 23 and Me and Ancestry.com - you may want to hold off on claiming your direct linage to the throne of Luxembourg. Identical twins Charlsie and Carly Agro sent their DNA samples to AncestryDNA, MyHeritage, 23andMe, FamilyTreeDNA and Living DNA - and what they found casts quite a bit of doubts on all personal genetic research companies.

Not only did each set of the twins' results vary wildly on the geographic home of their ancestors, they varied from each other. According to CBC News - each one of these companies has built a database of customers that it uses as reference for other customers. Simply put - the longer their business has new customers coming in, the more accurate the results will be. That begs the question, how accurate are they now?